How Catalyst Dispersion Solvents Affect CO2 Electrolyzer Gas Diffusion Electrodes

How Catalyst Dispersion Solvents Affect CO2 Electrolyzer Gas Diffusion Electrodes

The carbon dioxide reduction reaction (CO2RR) technology has the potential to produce carbon-based products at costs competitive with existing industrial processes if the CO2RR can be performed at high current densities, high faradaic efficiencies (FE) and low full cell voltages (Ecell). Typically, a “zero-gap” CO2 electrolyzer with a gaseous CO2 feedstock has been shown to selectively mediate the CO2RR at … Read More

Local CO2 Regeneration Enables Single Pass CO2 Conversion Exceeding 85% in the Electrosynthesis of Multicarbon Products

The carbon dioxide reduction reaction (CO2RR) presents the opportunity to consume CO2 and produce desirable products. However, the alkaline conditions required for productive CO2RR result in the bulk of input CO2 being lost to bicarbonate and carbonate. This loss imposes a 25% limit on the conversion of CO2 to multicarbon (C2+) products for systems that use anions as the charge … Read More

Charge Carriers in Zero-gap Anion Exchange Membrane CO2 Electrolysis to CO

Schematic Proposed electrochemical/chemical reactions, ionic species and water transport in a zero-gap AEM CO2 electrolyzer. Humidified CO2, and 10 mM KHCO3 are fed to cathode and anode of a CO2 electrolyzer, respectively. Adapted from [1] Charge Carriers in Zero-gap Anion Exchange Membrane CO2 Electrolysis to CO: OH, CO32- or HCO3–? The electrochemical conversion of CO2 to commercially valuable products, such … Read More

1000 Hr Performance and Stability Evaluation of CO2 Conversion to Formic Acid Using a Three-Compartment Electrolyzer Design

1000 Hr Performance and Stability Evaluation of CO2 Conversion to Formic Acid Using a Three-Compartment Electrolyzer Design

Schematic of the Dioxide Materials patented [1] 3-compartment  electrolyzer design configuration producing  formic acid using only CO2, water , and electricity.  Schematic adapted from Kaczur et. al [2]. The electrochemical conversion of carbon dioxide (CO2) into fuels and feedstocks has received increased attention during the past five years due to the global goal of reducing green house gas emissions (GHG).  … Read More

Green Hydrogen as a Clean Process Alternative in the Iron and Steel Industry

Simplified comparison of the conventional direct reduced iron ore process (DRI) using natural gas versus a green hydrogen route which produces significantly less CO2 emissions. The traditional iron ore reduction process in producing iron utilizes a chemical reaction between iron oxide and carbon monoxide generated from heating coke in a blast furnace. Coke is a processed carbon material made from … Read More

Effect of gas diffusion electrode composition to CO2 reduction

              Researchers in Canada study the link between electrode composition and CO2 reduction and publish their findings in the Royal Society of Chemistry’s Journal of Materials Chemistry A. In the past it has proved challenging to achieve reproducible electrochemical performance in electrolyzer flow cells. In order, to serve as pilot scale reactors especially for scaling CO2 electrolysis it is hence … Read More

Assessing durability of anion exchange membrane water electrolyzers

Anion exchange membrane water electrolyzers (AEMWEs) are considered one of the most promising low cost clean hydrogen production routes for unlocking sustainable energy storage and generation. They have the advantage of using cheaper non-noble metal base catalysts and less expensive flow fields and bipolar plates. At the heart of the electrolyzer, however, lies the anion exchange membrane (AEM) and durability … Read More

Importance of operation modes on the degradation behavior on AEM water electrolyzers

Degradation behavior of AEM membranes

Importance of operation modes on the degradation behavior on AEM water electrolyzers In-order to combine anion exchange membrane-alkaline water electrolysis (AEMWE) with renewable energy sources such as solar energy systems and wind power plants, it needs to be effectively coupled with the periodic and intermittent nature of these renewables. In lieu of that researchers from Republic of Korea investigated the … Read More

reducing green gas emissions by converting CO2 to make Formic Acid

Feasibility case study of reducing green gas emissions by converting CO2 to make Formic Acid

Feasibility case study of reducing green gas emissions by converting CO2 to make Formic Acid The electrochemical reduction of CO2, ERCO2, is considered one of the most promising strategies to valorize waste-CO2 as a feedstock to produce value-added chemicals, such as formic acid (FA), carbon monoxide, methane, ethene and methanol. Among these ERCO2 products, FA is valuable building block with … Read More

Reviewing anion exchange membrane (AEM) development for CO2 electrolyzers

Reviewing anion exchange membrane (AEM) development for CO2 electrolyzers

Reviewing anion exchange membrane (AEM) development for CO2 electrolyzers A broad group of experts in the field provide an excellent review published in Nature Energy on the potential, recent advances, and future recommendations of the design of AEMs for mediating the electrochemical CO2 reduction. The underlying goal is to enable CO2 reduction reaction at low cell voltages whilst maintaining high … Read More